<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"> <style>
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	</style></head><body><pre><span class='line'>  1</span> <span class="COMM">/**
<span class='line'>  2</span>  * Hilo
<span class='line'>  3</span>  * Copyright 2015 alibaba.com
<span class='line'>  4</span>  * Licensed under the MIT License
<span class='line'>  5</span>  */</span><span class="WHIT">
<span class='line'>  6</span> 
<span class='line'>  7</span> </span><span class="COMM">/**
<span class='line'>  8</span>  * &lt;iframe src='../../../examples/Bitmap.html?noHeader' width = '300' height = '200' scrolling='no'>&lt;/iframe>
<span class='line'>  9</span>  * &lt;br/>
<span class='line'> 10</span>  * 使用示例:
<span class='line'> 11</span>  * &lt;pre>
<span class='line'> 12</span>  * var bmp = new Hilo.Bitmap({image:imgElem, rect:[0, 0, 100, 100]});
<span class='line'> 13</span>  * stage.addChild(bmp);
<span class='line'> 14</span>  * &lt;/pre>
<span class='line'> 15</span>  * @class Bitmap类表示位图图像类。
<span class='line'> 16</span>  * @augments View
<span class='line'> 17</span>  * @param {Object} properties 创建对象的属性参数。可包含此类所有可写属性。此外还包括：
<span class='line'> 18</span>  * &lt;ul>
<span class='line'> 19</span>  * &lt;li>&lt;b>image&lt;/b> - 位图所在的图像image。必需。&lt;/li>
<span class='line'> 20</span>  * &lt;li>&lt;b>rect&lt;/b> - 位图在图像image中矩形区域。可选。&lt;/li>
<span class='line'> 21</span>  * &lt;li>&lt;b>crossOrigin&lt;/b> - 是否设置crossOrigin。默认否。&lt;/li>
<span class='line'> 22</span>  * &lt;/ul>
<span class='line'> 23</span>  * @module hilo/view/Bitmap
<span class='line'> 24</span>  * @requires hilo/core/Hilo
<span class='line'> 25</span>  * @requires hilo/core/Class
<span class='line'> 26</span>  * @requires hilo/view/View
<span class='line'> 27</span>  * @requires hilo/view/Drawable
<span class='line'> 28</span>  */</span><span class="WHIT">
<span class='line'> 29</span> </span><span class="WHIT"> </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">Bitmap</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">Class.create</span><span class="PUNC">(</span><span class="COMM">/** @lends Bitmap.prototype */</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 30</span> </span><span class="WHIT">    </span><span class="NAME">Extends</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">View</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 31</span> </span><span class="WHIT">    </span><span class="NAME">constructor</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">properties</span><span class="PUNC">)</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 32</span> </span><span class="WHIT">        </span><span class="NAME">properties</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">properties</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 33</span> </span><span class="WHIT">        </span><span class="NAME">this.id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.id</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">properties.id</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">Hilo.getUid</span><span class="PUNC">(</span><span class="STRN">"Bitmap"</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 34</span> </span><span class="WHIT">        </span><span class="NAME">Bitmap.superclass.constructor.call</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">properties</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 35</span> 
<span class='line'> 36</span> </span><span class="WHIT">        </span><span class="NAME">this.drawable</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">Drawable</span><span class="PUNC">(</span><span class="NAME">properties</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 37</span> 
<span class='line'> 38</span> </span><span class="WHIT">        </span><span class="COMM">//init width and height</span><span class="WHIT">
<span class='line'> 39</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">this.width</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">this.height</span><span class="PUNC">)</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 40</span> </span><span class="WHIT">            </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.drawable.rect</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 41</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="PUNC">(</span><span class="NAME">rect</span><span class="PUNC">)</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 42</span> </span><span class="WHIT">                </span><span class="NAME">this.width</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 43</span> </span><span class="WHIT">                </span><span class="NAME">this.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="PUNC">[</span><span class="NUMB">3</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 44</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 45</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 46</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 47</span> 
<span class='line'> 48</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'> 49</span>      * 设置位图的图片。
<span class='line'> 50</span>      * @param {Image|String} image 图片对象或地址。
<span class='line'> 51</span>      * @param {Array} rect 指定位图在图片image的矩形区域。可选。
<span class='line'> 52</span>      * @param {Boolean} crossOrigin 是否设置 crossOrigin，默认否。
<span class='line'> 53</span>      * @returns {Bitmap} 位图本身。
<span class='line'> 54</span>      */</span><span class="WHIT">
<span class='line'> 55</span> </span><span class="WHIT">    </span><span class="NAME">setImage</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="PUNC">(</span><span class="NAME">image</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">crossOrigin</span><span class="PUNC">)</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 56</span> </span><span class="WHIT">        </span><span class="NAME">this.drawable.init</span><span class="PUNC">(</span><span class="PUNC">{</span><span class="NAME">image</span><span class="PUNC">:</span><span class="NAME">image</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="PUNC">:</span><span class="NAME">rect</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">crossOrigin</span><span class="PUNC">:</span><span class="NAME">crossOrigin</span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 57</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="PUNC">(</span><span class="NAME">rect</span><span class="PUNC">)</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 58</span> </span><span class="WHIT">            </span><span class="NAME">this.width</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 59</span> </span><span class="WHIT">            </span><span class="NAME">this.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="PUNC">[</span><span class="NUMB">3</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 60</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 61</span> </span><span class="WHIT">        </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">this.width</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">this.height</span><span class="PUNC">)</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 62</span> </span><span class="WHIT">            </span><span class="NAME">rect</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.drawable.rect</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 63</span> </span><span class="WHIT">            </span><span class="KEYW">if</span><span class="PUNC">(</span><span class="NAME">rect</span><span class="PUNC">)</span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 64</span> </span><span class="WHIT">                </span><span class="NAME">this.width</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 65</span> </span><span class="WHIT">                </span><span class="NAME">this.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">rect</span><span class="PUNC">[</span><span class="NUMB">3</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 66</span> </span><span class="WHIT">            </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 67</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 68</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">this</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 69</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 70</span> </span><span class="WHIT"> </span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 71</span> </span></pre></body></html>